Unable to Store data entered in interface to the data store

How are you submitting the data from the interface?

How do you plan to store the data?

Need elaboration on the design and error, if any. 

if you are using a grid you could try something like this: 

a!localVariables(
/* Example data to load into the TravelReimbursement record type.
Replace the field names with your actual record fields. */
local!dataToLoad: a!forEach(
{
a!map(
employeeId: 1001,
tripStartDate: today() - 10,
tripEndDate: today() - 7,
destination: "New York",
amount: 850.00,
currency: "USD",
status: "Submitted"
),
a!map(
employeeId: 1002,
tripStartDate: today() - 5,
tripEndDate: today() - 3,
destination: "Chicago",
amount: 420.50,
currency: "USD",
status: "Submitted"
)
},
cast(
/* Use your travel reimbursement record type here */
recordType!TravelReimbursement,
fv!item
)
),

/* Track whether we've already written the data */
local!submitted: false,

/* Refresh the grid data when local!submitted changes */
local!records: a!refreshVariable(
value: a!queryRecordType(
recordType: recordType!TravelReimbursement,
fields: {
/* Replace with your actual field references */
recordType!TravelReimbursement.fields.employeeId,
recordType!TravelReimbursement.fields.tripStartDate,
recordType!TravelReimbursement.fields.tripEndDate,
recordType!TravelReimbursement.fields.destination,
recordType!TravelReimbursement.fields.amount,
recordType!TravelReimbursement.fields.currency,
recordType!TravelReimbursement.fields.status
},
pagingInfo: a!pagingInfo(startIndex: 1, batchSize: 50)
).data,
refreshOnVarChange: local!submitted
),

a!formLayout(
titleBar: "Travel Reimbursements",
contents: {
a!buttonLayout(
primaryButtons: {
a!buttonWidget(
label: if(local!submitted, "Data Written", "Write Sample Reimbursements"),
style: "SOLID",
disabled: local!submitted,
saveInto: {
a!writeRecords(
records: local!dataToLoad,
onSuccess: a!save(local!submitted, true)
)
}
)
}
),

a!gridField(
label: "Travel Reimbursement Records",
labelPosition: "ABOVE",
data: local!records,
columns: {
a!gridColumn(
label: "Employee ID",
value: fv!row[recordType!TravelReimbursement.fields.employeeId]
),
a!gridColumn(
label: "Destination",
value: fv!row[recordType!TravelReimbursement.fields.destination]
),
a!gridColumn(
label: "Start Date",
value: fv!row[recordType!TravelReimbursement.fields.tripStartDate]
),
a!gridColumn(
label: "End Date",
value: fv!row[recordType!TravelReimbursement.fields.tripEndDate]
),
a!gridColumn(
label: "Amount",
value: fv!row[recordType!TravelReimbursement.fields.amount]
),
a!gridColumn(
label: "Status",
value: fv!row[recordType!TravelReimbursement.fields.status]
)
},
pageSize: 10
)
},
buttons: a!buttonLayout(
primaryButtons: a!buttonWidget(
label: "Close",
submit: true
)
)
)
)