3420109 - Error - "Customer ID is not relevant for internal project"

While trying to upload data migration file for Internal Project with customer ID field value the following error occurs "Customer ID is not relevant for internal project".

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

SAP S/4HANA Cloud

1. Open App Migrate your Data
2. Select the migration project
3. Navigate to the Commercial Project object and select the file 

Internal project does not have customer field in Create/Plan Internal Project app.

Remove the values from the field Customer ID and try uploading the file again.

In Data migration template for commercial project for field customer ID it is specified that "Mandatory for customer projects. Not to be entered for internal projects."

Customer ID, Internal project, Customer ID is not relevant for internal project, Ca-Cpd-ss,Sap S/4Hana Cloud. , KBA , CA-CPD-SS , S/4HANA Public Cloud – Professional Service Projects , Problem

SAP S/4HANA Cloud Public Edition all versions ; SAP S/4HANA Cloud all versions