It is currently not possible to allow over-picking on Replenishment work types.

I suggest removing this restriction to, when configured, allow warehouse workers to do over-picking when completing warehouse replenishment work if there is sufficient available stock in the location to cover the additional quantity.

In warehouse implementations where there e.g. a carton contains a variable quantity of a product, unit conversions from say EA to Ctn cannot be applied.

In this case replenishment work generates for a set number of units (ea) which may be more or less than the quantity in a carton, however practically the worker completing the replenishment would want to pick a full carton (i.e. an over-pick), but is restricted from doing this.

Another case for removing the restriction is general flexibility. Even when unit conversions can be applied to products, it may be that it operationally makes sense to replenish more than the quantity suggested by the replenishment work.

Note: Could this perhaps be considered together with the long-standing idea to remove the over-picking restriction from Raw material picking? Microsoft Idea (dynamics.com)