---
updatedAt: 2026-06-29T20:36:51.000Z
---

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# Update program transaction type description

Update the description of a transaction type for a specific program.

# OpenAPI definition

```json
{
  "openapi": "3.1.0",
  "tags": [
    {
      "name": "Transaction types",
      "description": "Endpoints to manage transaction types\n"
    }
  ],
  "info": {
    "title": "Core platform - Transactions",
    "version": "1.0.0",
    "description": "API used to configure transactions domain and get transactions information.",
    "contact": {
      "name": "API Support",
      "url": "https://developers.pismo.io/support/"
    },
    "license": {
      "name": "Copyright Pismo"
    }
  },
  "servers": [
    {
      "url": "https://sandbox.pismolabs.io/transactions-core",
      "description": "Sandbox API server for testing"
    }
  ],
  "components": {
    "parameters": {
      "transactionTypeIdPath": {
        "in": "path",
        "name": "transactionTypeId",
        "description": "Transaction type ID.",
        "schema": {
          "type": "integer",
          "format": "int64"
        },
        "required": true,
        "example": 101010
      }
    },
    "securitySchemes": {
      "BearerAuth": {
        "type": "http",
        "scheme": "bearer",
        "description": "Account access token. Tokens can expire quickly, which can result in an \"Unauthorized\" error.",
        "bearerFormat": "JWT"
      }
    },
    "schemas": {
      "ProgramTransactionTypePatch": {
        "required": [
          "description"
        ],
        "type": "object",
        "properties": {
          "description": {
            "type": "string",
            "description": "Transaction type description",
            "maxLength": 30
          }
        },
        "example": {
          "description": "Credit Voucher"
        }
      },
      "ErrorResponse": {
        "type": "object",
        "properties": {
          "message": {
            "type": "string",
            "description": "Error description."
          },
          "error": {
            "type": "string",
            "description": "Error description."
          },
          "code": {
            "type": "string",
            "description": "Code description."
          }
        }
      }
    }
  },
  "security": [
    {
      "BearerAuth": []
    }
  ],
  "paths": {
    "/v1/programs/{programId}/transaction-types/{transactionTypeId}": {
      "patch": {
        "tags": [
          "Transaction types"
        ],
        "summary": "Update program transaction type description",
        "description": "Update the description of a transaction type for a specific program.",
        "operationId": "PatchProgramTransactionType",
        "parameters": [
          {
            "in": "path",
            "name": "programId",
            "description": "Program ID",
            "schema": {
              "type": "integer",
              "format": "int64"
            },
            "required": true
          },
          {
            "$ref": "#/components/parameters/transactionTypeIdPath"
          }
        ],
        "requestBody": {
          "description": "",
          "content": {
            "application/json": {
              "schema": {
                "$ref": "#/components/schemas/ProgramTransactionTypePatch"
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "OK"
          },
          "400": {
            "description": "Bad request",
            "content": {
              "application/json": {
                "schema": {
                  "oneOf": [
                    {
                      "$ref": "#/components/schemas/ErrorResponse"
                    }
                  ]
                },
                "examples": {
                  "invalidRequestParameters": {
                    "summary": "Invalid request parameters",
                    "value": {
                      "message": "Invalid request parameters",
                      "error": "Invalid request parameters",
                      "code": "WTRC00003"
                    }
                  },
                  "invalidRequestBody": {
                    "summary": "Invalid request body",
                    "value": {
                      "message": "Invalid request body",
                      "error": "Invalid request body",
                      "code": "WTRC00005"
                    }
                  }
                }
              }
            }
          },
          "404": {
            "description": "Not found",
            "content": {
              "application/json": {
                "schema": {
                  "oneOf": [
                    {
                      "$ref": "#/components/schemas/ErrorResponse"
                    }
                  ]
                },
                "examples": {
                  "pttNotFound": {
                    "summary": "Program transaction type not found",
                    "value": {
                      "message": "Program transaction type not found",
                      "error": "Program transaction type not found",
                      "code": "WTRC03001"
                    }
                  }
                }
              }
            }
          },
          "500": {
            "description": "Internal error",
            "content": {
              "application/json": {
                "schema": {
                  "oneOf": [
                    {
                      "$ref": "#/components/schemas/ErrorResponse"
                    }
                  ]
                },
                "examples": {
                  "pttNotFound": {
                    "summary": "Could not perform program transaction type operation",
                    "value": {
                      "message": "Could not perform program transaction type operation",
                      "error": "Could not perform program transaction type operation",
                      "code": "ETRC03002"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}
```