2915115 - S/4HC: Error message encountered when extending suppliers to customers.

• System throws error message: Error occurs when calling function module in target system  System error (portion 0000000001, conversion object ******)  The ASSERT condition was violated. (conversion object *******)' when extending a supplier to customer using Customer - extend existing record by new org levels' template.
• Error message occurs during migration when using Customer - extend existing record by new org levels' template.
• "Unable to load data" error occurs when adding Business Partner Role "FLCU00 ("Customer (Fin.Accounting)") to a business partner using the app "Manage Business Partner Master Data".

SAP S/4HANA Cloud Public Edition

Via Migration Template:

1. Open app Migrate your Data.
2. Click on Migration Project. For e.g.: Test customer extend
3. Choose template Customer - extend existing record by new org levels.
4. Click Start Transfer.

Via Manage Business Partner Master Data App.

1. Go To App Manage Business Partner Master Data.
2. Go To Business Partner. For e.g: 9980000090.
3. Scroll to "Roles".
4. Click Create.
5. Select FLCU00 ("Customer (Fin.Accounting)".
6. Click save.
7. The error message "Unable to load data" occurs.

Configuration error.

1. Ensure that the BP Grouping used to create the Supplier is maintained in SSCUI 102742 or for Customers in SSCUI 102741- Define Number Assignment for Direction BP to Customer. (Only the account group can be edited, to add new BP groupings in SSCUI 102741 or 102742 a non-standard expert configuration would be needed)
2. Ensure BP Grouping used to create the Supplier is maintained for the Customer Account Group maintained in the migration file.
3. Ensure that all of the customers & suppliers in the migration template file already exist.

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