The internal number already exists Message no. MM042

SAP MM ERROR TUTORIALS-

✅ Common Error Message."The internal number already exists" in MM01 during the creation of a FERT (Finished Product) typically indicates that the material number you're trying to create already exists in the system. in SAP.....

✅ FOLLOW STEPS-

✅ Solution-TCODE -MMNR

The material type is set up for external number assignment in transaction MMNR (Maintain Number Ranges for Material).

Internal number assignment is try to creating a material of this type MM01

✅ FOLLOW PATH-SPRO → Logistics → Materials Management → Material Master → Basic Settings → Maintain Number Ranges (MMNR)

✅ Solution-TCODE -GO TO MMNR

✅ SELECT -INTERVALS

✅ SELECT -LICR-CHANGE NO RANGE-

✅ 1)Reassign Number Range:- Adjust the number range if it has been exhausted or overlaps with another.

✅ 2)Also Correct Material Number: Use a different material number if creating manually.

✅ Check Point