Mo. Rev. Stat. § 400.4-203: Effect of instructions.

Subject to article 3 concerning conversion of instruments (Section 400.3-420) and restrictive endorsements (Section 400.3-206), only a collecting bank's transferor can give instructions that affect the bank or constitute notice to it, and a collecting bank is not liable to prior parties for any action taken pursuant to the instructions or in accordance with any agreement with its transferor.