SAP Message /MAP/AD01072 - Date proposal not possible in row &2; enter date manually

Diagnosis
You have performed assortment determination for plant &V1& in line &V2&.In assortment determination, the system usually proposes a validityperiod that starts with the key date of the chosen selection and lastsindefinitely. This system proposal clashes with the other planned orreleased assignments for this plant.

System Response
No validity period is proposed.

Procedure
Maintain the validity period manually in line &V2&.