Marriage allowance surplus

I use 123 efiling to submit returns. Theres a problem they cant seem to solve for me. I can fill in the part to transfer my surplus allowance to husband, completing his details, however their software doesnt give the boxes for my details when my husband wants to claim the surplus from me. Is my tax return alone enough to give the surplus to him with his details, or does his tax return actually have to claim to receive the surplus from me, with my details on it? thanks

Hi,
 

He does not declare anything regarding Marriage Allowance on his return. Once we have received it and Marriage Allowance is already in place, we will update the calculation to include the Marriage Allowance. Thank you.