---
updatedAt: 2026-04-20T19:56:08.000Z
---

Fetch the complete documentation index at: https://developers.pismo.io/pismo-docs/llms.txt. Use this file to discover all available pages before exploring further. Append .md to any documentation page URL to get its markdown version.

# Register banking accounts with transaction banking

Onboard accounts that already exist in Banking into Transaction Banking. Once onboarded, these accounts are enabled to use transaction banking APIs and features.


# OpenAPI definition

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "Banking - Transaction banking",
    "version": "0.9.0",
    "description": "Transaction banking API",
    "contact": {
      "name": "API Support",
      "url": "https://developers.pismo.io/support/"
    },
    "license": {
      "name": "Copyright Pismo"
    }
  },
  "servers": [
    {
      "url": "https://sandbox.pismolabs.io",
      "description": "Sandbox API server for testing"
    }
  ],
  "security": [
    {
      "BearerAuth": []
    }
  ],
  "tags": [
    {
      "name": "Register banking account",
      "description": "Register existing banking accounts for transaction banking"
    }
  ],
  "components": {
    "schemas": {
      "DivisionCode": {
        "type": "string",
        "maxLength": 36,
        "description": "Code used to identify your division within the organization. Division code should only contain letters, numbers, and hyphens.",
        "example": "US"
      },
      "ErrorCode": {
        "description": "Error code\n`minLength: 1`\n`maxLength: 12`\n",
        "type": "string",
        "minLength": 1,
        "maxLength": 12,
        "example": "WPMT0017"
      },
      "ErrorMessage": {
        "description": "Error message\n`minLength: 1`\n`maxLength: 1000`\n",
        "type": "string",
        "minLength": 1,
        "maxLength": 1000,
        "example": "Invalid JSON payload received: Error unmarshalling request"
      },
      "ErrorResponse": {
        "type": "object",
        "properties": {
          "code": {
            "$ref": "#/components/schemas/ErrorCode"
          },
          "message": {
            "$ref": "#/components/schemas/ErrorMessage"
          }
        }
      },
      "ProgramID3": {
        "type": "integer",
        "format": "int64",
        "description": "Program ID. This is a client-provided ID.",
        "example": 2222
      },
      "RegisterAccountv2": {
        "type": "object",
        "description": "Registers and onboards existing banking accounts to transaction banking.",
        "properties": {
          "account_id": {
            "$ref": "#/components/schemas/RegisterAccountIdv2"
          },
          "division_code": {
            "$ref": "#/components/schemas/DivisionCode"
          }
        },
        "required": [
          "account_id"
        ]
      },
      "RegisterAccountIdv2": {
        "type": "integer",
        "format": "int64",
        "minimum": 1,
        "maximum": 18446744073709552000,
        "description": "Registered account ID. This ID is client-generated.",
        "example": 325636216
      },
      "RegisterAccountResponsev2": {
        "type": "object",
        "description": "Response payload of Register account",
        "properties": {
          "account_id": {
            "$ref": "#/components/schemas/RegisterAccountIdv2"
          },
          "program_id": {
            "$ref": "#/components/schemas/ProgramID3"
          },
          "status": {
            "$ref": "#/components/schemas/RegisterAccountStatusv2"
          },
          "division_code": {
            "$ref": "#/components/schemas/DivisionCode"
          }
        },
        "required": [
          "account_id",
          "program_id",
          "status"
        ]
      },
      "RegisterAccountStatusv2": {
        "type": "string",
        "description": "Transaction banking account registration status. `COMPLETED` is returned only when the registration succeeds.",
        "example": "COMPLETED"
      }
    },
    "responses": {
      "500InternalServer": {
        "description": "Internal Server Error",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "#/components/schemas/ErrorResponse"
            },
            "examples": {
              "Generic internal error": {
                "value": {
                  "code": "ECMN9999",
                  "message": "Internal error"
                }
              }
            }
          }
        }
      },
      "503HttpClientError": {
        "description": "Service unavailable"
      }
    },
    "securitySchemes": {
      "BearerAuth": {
        "type": "http",
        "scheme": "bearer",
        "bearerFormat": "JWT"
      }
    }
  },
  "paths": {
    "/corporate/v2/corporate-accounts/register": {
      "post": {
        "summary": "Register banking accounts with transaction banking",
        "description": "Onboard accounts that already exist in Banking into Transaction Banking. Once onboarded, these accounts are enabled to use transaction banking APIs and features.\n",
        "operationId": "post-corporate-v2-register-account",
        "tags": [
          "Register banking account"
        ],
        "requestBody": {
          "description": "Onboard existing banking accounts into transaction banking.",
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/RegisterAccountv2"
              },
              "examples": {
                "Register account": {
                  "value": {
                    "account_id": 325636216,
                    "division_code": "my-division-code-1773411878103"
                  }
                }
              }
            }
          }
        },
        "responses": {
          "201": {
            "description": "Created",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/RegisterAccountResponsev2"
                },
                "examples": {
                  "Account registered successfully": {
                    "value": {
                      "account_id": 325636216,
                      "division_code": "my-division-code-1773411878103",
                      "program_id": 1240,
                      "status": "COMPLETED"
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "A Bad Request validation error",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                },
                "examples": {
                  "Program not bound to division": {
                    "value": {
                      "code": "WCAC0006",
                      "message": "Program not bound to division"
                    }
                  }
                }
              }
            }
          },
          "404": {
            "description": "Not Found",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                },
                "examples": {
                  "Account not found in accounts-core": {
                    "value": {
                      "code": "WCAC0041",
                      "message": "Account not found in accounts-core"
                    }
                  },
                  "Division not found": {
                    "value": {
                      "code": "WCDV0002",
                      "message": "Division not found"
                    }
                  }
                }
              }
            }
          },
          "409": {
            "description": "Conflict",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                },
                "examples": {
                  "Duplicated external_account_id": {
                    "value": {
                      "code": "WCAC0011",
                      "message": "Duplicate external_account_id"
                    }
                  }
                }
              }
            }
          },
          "422": {
            "description": "Unprocessable Entity",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/ErrorResponse"
                },
                "examples": {
                  "Account has not completed the creation process": {
                    "value": {
                      "code": "WCAC0042",
                      "message": "Account has not completed the creation process"
                    }
                  },
                  "Program type CREDITO cannot be registered": {
                    "value": {
                      "code": "WCAC0043",
                      "message": "Program type CREDITO cannot be registered"
                    }
                  }
                }
              }
            }
          },
          "500": {
            "$ref": "#/components/responses/500InternalServer"
          },
          "503": {
            "$ref": "#/components/responses/503HttpClientError"
          }
        }
      }
    }
  }
}
```