On the face of it, honouring a Data Subject request should be fairly straightforward. The reality however is often different.
Your team dealing with requests need to have sufficient knowledge of your obligations and the time to assess and respond to each request in the timescales allowed.
For example, they need to be able to balance the right of someone to see the information you hold about them with the rights of others whose information may be linked to them.
Redaction of records provided to an individual needs to be carefully done, including ensuring the redaction cannot be undone and includes stripping a file of meta data etc where necessary.
The team dealing with your Data Subject requests needs to be knowledgeable and have the skills to be able to communicate why your organisation may not be able to provide the result the customer asks for e.g. being able to explain why a deletion request can only be fulfilled in part and how your company plans to protect the data which cannot be deleted.
Remember that a complaint to the ICO is a potential outcome and your response team needs to be sufficiently proficient to spot and mitigate any issues in advance.