SAP Knowledge Base Article - Public

3756909 - "Accounting data: &1 / &2 already exists" error occurs during simulation phase in Migrate Your Data app.

Symptom

Below error occurs during the simulation phase for the migration object “Product - extend existing record by new org levels” in the Migrate Your Data app.

Message no. CNV_DMC_SIN 263

Environment

SAP S/4HANA Cloud Public Edition

Reproducing the Issue

  1. Open the Migrate Your Data app and create a migration project for “Product - extend existing record by new org levels”.
  2. Fill the migration template.
  3. Upload the completed file.
  4. Execute the prepare and mapping tasks.
  5. Run Simulate Migration.
  6. Observe the error.

Cause

With the “Product - extend existing record by new org levels” migration object, an existing product can only be extended by adding new organizational levels.

Updating or enhancing data for organizational levels that already exist is not supported.

Resolution

  • Review the migration template or staging tables and ensure they contain only new organizational levels to be added for the product.
  • Remove any accounting data entries for organizational levels that already exist in the target system, then re-run the simulation.
  • If existing organizational levels need to be update, use Mass Maintenance to update the products instead of the migration object.

See Also

Keywords

migrate your data, migration cockpit, product extension, extend existing record by new org levels, cnv_dmc_sin 263, dmc_rt_msg 188, accounting, simulation error, product organizational levels, mass maintenance, product accounting view, data migration error, material extension, staging table , KBA , CA-GTF-MIG , SAP S/4HANA Data Migration Cockpit Content , LO-MD-MM-2CL , Product Master for Public Cloud , Problem

Product

SAP S/4HANA Cloud Public Edition all versions