Phone app: An open bill

Everything this phone screen can show, in the app’s own words. A “…” is a name, number or date filled in at the time.

• Goods returned — Make a credit note for goods this customer brought back.
• Change this bill — Correct the bill.
• Delete bill — Delete the bill. Asks first.
• Was … - the customer has that number on paper
• This replaces bill …. — Saving replaces the bill named.
• Filed at the counter — stock and books updated
• Held at the counter - its number was already used there. The owner decides (Home → Number clashes).
• Held at the counter - a lot must be picked before it is filed: by the owner (Home → Bills waiting for a lot) or at the counter. Nothing of it is in the books yet.
• Held at the counter - it is dated before a bill already in its series. The main counter decides: file it as dated, re-date it, or date it today.
• Not sent - the counter has already used this number
• Sent to the counter — it files it as soon as its screen is free
• Not sent yet — it goes as soon as the counter can be reached
• the IMEI / serial — Still to pick: the serial of a unit.
• the size / colour — Still to pick: the size and colour.
• the power — Still to pick: the lens power.
• the batch — Still to pick: the batch.
• …: that IMEI is not in stock at the counter - pick another there
• …: one IMEI per piece - pick each one at the counter
• …: no batch there may be sold - it decides there
• The counter picks the batches for this bill by hand
• …: "…" is not one the counter has - it picks the right one there
• …: … is still to be picked — Something on the line still has to be chosen before the counter can file it.
• The counter's … is …, …. — What the main counter shows for this.
• …: the counter's books show too few - it decides there