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diff --git a/packages/merchant-backoffice-ui/src/components/product/NonInventoryProductForm.tsx b/packages/merchant-backoffice-ui/src/components/product/NonInventoryProductForm.tsx
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+/*
+ This file is part of GNU Taler
+ (C) 2021 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+import { Fragment, h, VNode } from "preact";
+import { useCallback, useEffect, useState } from "preact/hooks";
+import * as yup from 'yup';
+import { FormErrors, FormProvider } from "../form/FormProvider";
+import { Input } from "../form/Input";
+import { InputCurrency } from "../form/InputCurrency";
+import { InputImage } from "../form/InputImage";
+import { InputNumber } from "../form/InputNumber";
+import { InputTaxes } from "../form/InputTaxes";
+import { MerchantBackend } from "../../declaration";
+import { useListener } from "../../hooks/listener";
+import { Translate, useTranslator } from "../../i18n";
+import {
+  NonInventoryProductSchema as schema
+} from '../../schemas';
+
+
+type Entity = MerchantBackend.Product
+
+interface Props {
+  onAddProduct: (p: Entity) => Promise<void>;
+  productToEdit?: Entity;
+}
+export function NonInventoryProductFrom({ productToEdit, onAddProduct }: Props): VNode {
+  const [showCreateProduct, setShowCreateProduct] = useState(false)
+
+  const isEditing = !!productToEdit
+
+  useEffect(() => {
+    setShowCreateProduct(isEditing)
+  }, [isEditing])
+
+  const [submitForm, addFormSubmitter] = useListener<Partial<MerchantBackend.Product> | undefined>((result) => {
+    if (result) {
+      setShowCreateProduct(false)
+      return onAddProduct({
+        quantity: result.quantity || 0,
+        taxes: result.taxes || [],
+        description: result.description || '',
+        image: result.image || '',
+        price: result.price || '',
+        unit: result.unit || ''
+      })
+    }
+    return Promise.resolve()
+  })
+
+  const i18n = useTranslator()
+
+  return <Fragment>
+    <div class="buttons">
+      <button class="button is-success" data-tooltip={i18n`describe and add a product that is not in the inventory list`} onClick={() => setShowCreateProduct(true)} ><Translate>Add custom product</Translate></button>
+    </div>
+    {showCreateProduct && <div class="modal is-active">
+      <div class="modal-background " onClick={() => setShowCreateProduct(false)} />
+      <div class="modal-card">
+        <header class="modal-card-head">
+          <p class="modal-card-title">{i18n`Complete information of the product`}</p>
+          <button class="delete " aria-label="close" onClick={() => setShowCreateProduct(false)} />
+        </header>
+        <section class="modal-card-body">
+          <ProductForm initial={productToEdit} onSubscribe={addFormSubmitter} />
+        </section>
+        <footer class="modal-card-foot">
+          <div class="buttons is-right" style={{ width: '100%' }}>
+            <button class="button " onClick={() => setShowCreateProduct(false)} ><Translate>Cancel</Translate></button>
+            <button class="button is-info " disabled={!submitForm} onClick={submitForm} ><Translate>Confirm</Translate></button>
+          </div>
+        </footer>
+      </div>
+      <button class="modal-close is-large " aria-label="close" onClick={() => setShowCreateProduct(false)} />
+    </div>}
+  </Fragment>
+}
+
+interface ProductProps {
+  onSubscribe: (c?: () => Entity | undefined) => void;
+  initial?: Partial<Entity>;
+}
+
+interface NonInventoryProduct {
+  quantity: number;
+  description: string;
+  unit: string;
+  price: string;
+  image: string;
+  taxes: MerchantBackend.Tax[];
+}
+
+export function ProductForm({ onSubscribe, initial }: ProductProps): VNode {
+  const [value, valueHandler] = useState<Partial<NonInventoryProduct>>({
+    taxes: [],
+    ...initial,
+  })
+  let errors: FormErrors<Entity> = {}
+  try {
+    schema.validateSync(value, { abortEarly: false })
+  } catch (err) {
+    if (err instanceof yup.ValidationError) {
+      const yupErrors = err.inner as yup.ValidationError[]
+      errors = yupErrors.reduce((prev, cur) => !cur.path ? prev : ({ ...prev, [cur.path]: cur.message }), {})
+    }
+  }
+
+  const submit = useCallback((): Entity | undefined => {
+    return value as MerchantBackend.Product
+  }, [value])
+
+  const hasErrors = Object.keys(errors).some(k => (errors as any)[k] !== undefined)
+
+  useEffect(() => {
+    onSubscribe(hasErrors ? undefined : submit)
+  }, [submit, hasErrors])
+
+  const i18n = useTranslator()
+
+  return <div>
+    <FormProvider<NonInventoryProduct> name="product" errors={errors} object={value} valueHandler={valueHandler} >
+
+      <InputImage<NonInventoryProduct> name="image" label={i18n`Image`} tooltip={i18n`photo of the product`} />
+      <Input<NonInventoryProduct> name="description" inputType="multiline" label={i18n`Description`} tooltip={i18n`full product description`} />
+      <Input<NonInventoryProduct> name="unit" label={i18n`Unit`} tooltip={i18n`name of the product unit`} />
+      <InputCurrency<NonInventoryProduct> name="price" label={i18n`Price`} tooltip={i18n`amount in the current currency`} />
+
+      <InputNumber<NonInventoryProduct> name="quantity" label={i18n`Quantity`} tooltip={i18n`how many products will be added`} />
+
+      <InputTaxes<NonInventoryProduct> name="taxes" label={i18n`Taxes`} />
+
+    </FormProvider>
+  </div>
+}