SAP Message W/190 - Price list &1 distr. ch. &2 &3 does not exist - processing impossible

Diagnosis
The data that was transferred to the method is representative of thecurrent status of the markdown plan on the database. However, this datadiffers to the actual data in the database.
The system could not find price list &V1& that you entered indistribution chain &V2& &V3& in the markdown plan in the database.

System Response
The markdown plan could not be processed. No changes will be written tothe database.

Procedure
To avoid inconsistencies in the database the markdown plan processingmust be performed based on current data in the database.
Read the current data using the "PriceMarkdownPlan.GetDetail" methodfrom the database and repeat the processing with the current data.