10001124 
Message
[Price list name] - Price list cannot be deleted due to link to Special Prices
Diagnosis
In the Price Lists window, you have tried to delete one of the price lists (by choosing the Delete Row option from the context menu), but a special price based on this price list was found.
Procedure
Price list that is used as a base price list for special prices cannot be deleted. To review special prices definitions, choose: 
Inventory 
Price Lists Special Prices Special
Prices for Business Partners 
.