SAP Knowledge Base Article - Public

1971440 - Cannot Maintain Cyclic Quantity Conversions

Symptom

When you try to save quantity conversions for a product, error occurs: Conversion between A and B not valid; conversion to B already exists.

Reproducing the Issue

  1. Go to Product Data work center
  2. Go to Materials view 
  3. Edit a material
  4. In General tab, try to maintain quantity conversion
  5. The error message appears: Conversion between A and B not valid; conversion to B already exists

Cause

The error message is raised because you try to maintain cyclic quantity conversions. If you have maintained one conversion between A and B and the other conversion between A and C. The quantity conversion between B and C is not needed because this can already be calculated by other two conversions. 

Resolution

Remove the unnecessary quantity conversion

Keywords

KBA , SRD-MD-PRD-PRD , Product , How To

Product

SAP Business ByDesign all versions