Forum Discussion
Difference between 2 columns in power bi
relationship already developed.. have you checked the link ?
If have seen it so there is an Warning while creating a Many-to-Many relarionship. So make the key values unique and atleast single match in both the key column.
(See below screen shot of your file)
- Bakhtawar7 years ago
Post Patron
yes i know and this is the only key which should be link .. if i get any other realtionship then same error occured..
- Tahreem247 years ago
Super User
Error occured due to below reason most probably:
1) Check whether the boht the key column dont have any null values.
2) Alteast one common value should be present in both the key column.
- Tahreem247 years ago
Super User
From your data it is clearly shows that there NULL entry in key column (LPO_Key) in LPO_Excel table(Refer screen shot below) . So clear out this null values and then create one-to-many relation.