SAP Note 27705 - Error message E026 when calling detailed capa. list

Symptom:

When you call the graphic from the detailed capacity list of the capacity requirements planning, message E026 is displayed (Number of transferred values is larger/smaller than defined in table DIMS).

Cause and prerequisites

The error occurs if neither a material number nor an order short text exists for one of the orders.

Solution
a) Enter a short text for the order.
b) Make the correction specified below.