Account Determination error during Goods Receipt

Good Day,

I get the error Account determination for 2000 WRX is not possible when trying to post a Goods Receipt for a material without a master.

My material is linked to material material type 1.

Material type 1 is linked to valuation class 3000.

In OBYC transaction WRX valuation class 3000 is linked to the G/L account I am posting to 405200.

Despite these settings I cannot post a good receipt.

The posting however works when I use a material with a material master and the same G/L account.