YoBulk should support column hooks to do custom validation at cell level.

[YoBulkMaster]

Example: Column hook Input
[
{ value: "michelledoe@gmail.com", index: 0 },
{ value: "janedoe@gmail.com", index: 1 },
{ value: "steve@hotmail.com", index: 2 },
{ value: "wayne@nhl.com", index: 3 },
];

Column Hook Output:
[
{
index: 0,
value: "michelledoe@aol.com",
info: [
{
message: "Automatically corrected email domain",
level: "info", // should be "info", "warning" or "error"
},
],
},
// we can omit cells that don't need any changes or messages
{
index: 2,
// Don't need to supply value if we're not changing it
info: [
{
message: "Email not found",
level: "error",
},
],
},
];