Hi

Policy coordination refers to the means of ensuring that the said policy is well implemented, monitored and evaluated accordingly. It may also involve the aspect of policy integration and policy coherence, depending on the task(s) at hand.

Policy integration involves making sure that overlapping policies or policies targeting similar objectives are simultaneously and carefully implemented while ensuring that any of them does not have negative effect(s) on the other ones.

Policy coherence on the other hand ensures that a particular policy and its components are consistent, orderly, and also logical.

Hope this helps!